Gemstones, Diamonds, Pearls - Multicolour.com
My Shopping Cart My Account Gem Library
|Welcome to Multicolour.com|Single Stones|Calibrated Stones|Pairs|Mix Lots|Closeouts|Carved Gems|lapidary and gemological tools and supplies|Gem Smart Search|
Home / Gem Library / Gemstones Varieties / Dinosaur Bone April 16, 2014

Natural Dinosaur Bone

What we today call dinosaur bone in the gem trade is more correctly and descriptively known as silicified fossil of dinosaur bone.


  • There are 3 Dinosaur Bone gemstones available at Multicolour.com
  • Dinosaur Bone(s) are organized in the following categories: PairSingle,  gemstones.
  • Our most expensive Dinosaur Bone is USD 12.62 and largest Dinosaur Bone weight is CTS 20.81.
  • Our cheapest Dinosaur Bone is USD 8.28 and smallest Dinosaur Bone weight is CTS 15.78.

Dinosaur Bone Profile

Refractive Index: 1.535 - 1.539
Chemical Composition: SIO2
Hardness: 7
Density: 2.66
Crystal Group: Hexagonal
Ocurrence: Arizona, New Mexico, Utah, Colorado, Madagascar, Mongolia, Siberia, Argentina
Sign of the Zodiac: N/A
Month of the year: N/A
Dinosaur Bone
The dinosaurs were one of Earthís most successful creatures. Their reign lasted approximately 120 million years in the period known as the Mesozoic Era (The Age of Reptiles). They are thought to have first appeared in the late Triassic, about 200 million years ago, and evolved and diversified thru the Jurassic Period (180-135 million years ago). By the end of the Cretaceous About 70 million years ago) they were extinct.

What we today call dinosaur bone is more correctly and descriptively known as silicified fossil of dinosaur bone. Fossils are the remains of prehistoric animals or plants. Silicified means the fossil is quartz (a form of silica). A more common name for this form of quartz is agate.

Usually fossils are some hard skeletal part on an organism, slow to decay, that has been quickly buried in sediment, preserving them more or less intact until petrification begins. Bones, teeth, shells and wood are often preserved in this manner.

Petrification is a complex process in which groundwater is an essential ingredient as it carries the mineral solutions that permeate and replace the buried remains of a living organism. In some cases these mineral bearing solutions fill the cavity left by the decay of the buried object; in other cases they replace the porous areas in the buried organic material with another mineral taken from the surrounding sediments, silica in the case of gem quality dinosaur bone.

In the most optimal of cases, the most delicate and minute details of the cellular structure of the original bone have been reproduced. Molecules of the organic material are removed and replaced bit by bit by inorganic material (silica in solution). The fact that living bone is nourished thru a highway of blood vessels makes the petrification process more possible as these same highways now conduct the mineralized water. The colors in agatized fossils come from trace minerals, metallic salts, in the silica solution. The vivid and unexpected colors and patterns can be magical and delightful.

Although fossilized dinosaur bones are found in many places around the world, from Argentina to Mongolia to Madagascar, the highly silicified and beautifully colored dinosaur bone that weíre most interested in, sometimes called gem bone, is almost exclusively found in a relatively small area in the United States, the Colorado Plateau. Now days, it is a semi desert region centered a bit north of the Four Corners, where the states of Arizona, New Mexico, Utah, and Colorado touch. Most of the areas that produce quality bone are in Colorado and Utah. When the dinosaurs lived there it was an area that included both land and water, with swamps, lakes, and shallow oceans bordered by continental shelf, rising into ancient mountains. As geologic time passed the climate changed, becoming more arid. Volcanic activity increased, and with it volcanic sediments, rich in silica were carried by the rivers and deposited as the seas retreated. This proved to be an ideal environment for the burial and subsequent preservation of the remains of many a dinosaur.

Today, itís quite difficult to go out and collect dinosaur bone. In fact, itís illegal to do so on government land unless you are a research scientist with permission from the Bureau of Land Management, which manages the pubic domain. Although private lands occasionally yield a bit of new material, most gem bone was collected long ago. Prospectors searching for uranium discovered lots of it in the 1950ís, as bone is sometimes found within sediments containing uranium ore.

Beautiful bone cut and polished to display interesting patterns, especially when it shows high contrast and vivid colors is quite popular with collectors. As is the case with many materials in limited supply, it is especially appreciated and sought after by local collectors, who are more fully aware of itís rarity in finer grades and are knowledgeable of its value. The variety of color and pattern is amazing. Some pieces are transparent when cut thin, with the bone marrow cell membrane forming a spider web pattern. Some bones are hollow, with a core of amethyst crystals. The patterns revealed through cutting and polishing vary with the type of bone, the direction of the cutting through the bone, whether across it, or along it, or diagonal across it. Each produces a different look. Between variations in pattern and variations in color, the choices are almost limitless. There is a stone for almost any taste, from those who prefer the subtle and understated to those who want their stones to be bold and unusual. Dinosaur bone is a stone with a certain magical allure, enduring and preserving a bit of our past, from the absolute mists of time, a stone that anyone with a sense of the fleeting nature of time should find attractive and magical.

Looking for other Gemstones?

Search Gems by Color | Advance Search | Step-by-Step Search Wizard

Search/
Search for:
Search Site Gems
Enter keywords or item #. (i.e ruby or YDFG97a).
Shopping Cart: Empty

Dinosaur Bone range/
Dinosaur Bone Pair
Dinosaur Bone Pair Fancy Translucent
Size: 23.50 X 12.00 MM
Weight: 15.780 CTS
Shape: Fancy
Clarity: Translucent
Usually ships within 24 hours
RECOMMENDED
OUR PRICE
USD 12.62
Add to Shopping Cart Save For Later

Dinosaur Bone Single
Dinosaur Bone Single Pear Opaque
Size: 29.80 X 16.30 MM
Weight: 16.550 CTS
Shape: Pear
Clarity: Opaque
Usually ships within 24 hours
RECOMMENDED
OUR PRICE
USD 8.28
Add to Shopping Cart Save For Later


Gem Library/
Gems Legend and  Lore Gems Legend and Lore
Some of the latest of ways that gems have been associated with Birthstones and Signs of the Zodiac.
Understanding Gemstones Understanding Gemstones
Learn about Physical and Optical properties, color, clarity and cut of gemstones.
Gems Glossary Gems Glossary
Ever wonder what are "Blemish", "Luster", "Saturation" "Uniformity" or "Mine Run" means?
Reference and  Links Reference and Links
Recommended books and links to Gem, Jewelry&Mineral Magazines, Gem Institutes and Labs.

 Top of Page Need help?  

Gemstones for sale: Alexandrite, Garnet, Diamond, Opal, Spinel, Sapphire, Tourmaline, Tanzanite, Tsavorite,
Gemstones by Category: Calibrated, Carving, Closeout, Mixed Lot, Pair, Rough, Single, Best Sellers or Featured Gemstones.
Gemstone education: Colored Gemstones Guide, Gems Library, Gemstone Treatments, Gemstone Glossary, Gems and Astrology,

A BBB Accredited Business All Transactions secure by Thawte certificate - click here to validate Ebay Power Seller Gem Certification Various Shipping Options Major Credit Cards Accepted

All trademarks and logos shown herein are the property of their respective owners. © Copyright Multicolour.com, 1998-2011. All rights reserved. Use of this site constitutes acceptance of Multicolour.com Return Policy, Privacy Policy and Trading Guarantee. Published and operated by David Wein Ltd. 32 Hollywood Road, Central, Hong Kong Island Hong Kong. Lost? Check site map or resources page.

Site design and maintenance by NetComposite ®.